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IMPACT WELDING: A SUPERIOR METHOD OF PRODUCING JOINTS WITH HIGH THERMAL CONDUCTIVITY BETWEEN METALS AT VERY LOW TEMPERATURES.

Author(s) : WILLEKERS R. W.

Type of article: Article

Summary

TO IMPROVE THE CONNECTION BETWEEN COPPER AND ALUMINIUM FOR USE IN A SUPERCONDUCTING HEAT SWITCH, THREE-LAYER COPPER-ALUMINIUM-COPPER SANDWICHES HAVE BEEN PRODUCED BY IMPACT WELDING. AN UPPER LIMIT OF THE LOW-TEMPERATURE SPECIFIC THERMAL COPPER-ALUMINIUM CONTACT RESISTANCE OF 0.00013 T K.M2/W WAS FOUND. THIS IS LESS THAN HALF OF THE LOWEST SPECIFIC THERMAL PRESS CONTACT RESISTANCE BETWEEN 2 GOLD PLATED COPPER STRIPS, OF WHICH ELECTRICAL RESISTANCES AT 4.2 K WERE MEASURED UNDER VARIOUS SURFACE AND CLAMPING CONDITIONS.

Details

  • Original title: IMPACT WELDING: A SUPERIOR METHOD OF PRODUCING JOINTS WITH HIGH THERMAL CONDUCTIVITY BETWEEN METALS AT VERY LOW TEMPERATURES.
  • Record ID : 1990-0964
  • Languages: English
  • Source: Cryogenics - vol. 29 - n. 9
  • Publication date: 1989

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